All Figures

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{H3930F1.EPS} \end{figure}$ Figure 1: Example of one ISOGAL observation which has been used for one FA and one FC fields. The formal limits of both fields are shown with rectangular frames: FC field (upper frame) and FA field (lower frame). The different symbols correspond to the different catalogues of sources (see Sect. 5): squares (FC, regular), crosses (FC, edge), diamonds (FA, regular) and plus signs (FA, edge).
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[angle=90,width=17.6cm,clip]{H3930F2.EPS} \end{figure}$ Figure 2: Galactic map of the ISOGAL disk fields. The black boxes show the fields which have been observed at both 7 and 15 $\mu$ m (FC fields), while the open boxes stand for 7 $\mu$ m only observations (FA), and the grey ones for 15 $\mu$ m only observations (FB).
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{H3930F3.EPS} \end{figure}$ Figure 3: Distribution of the quality flag Q for the different filters. The gray scale corresponds to the different values of this flag, from 4 (lightest grey) to 1 (darkest grey).
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.1cm,clip]{H3930F4.EPS} \end{figure}$ Figure 4: Distribution of the magnitudes mag $_{\rm lim}$ at which the catalogues have been cut for the broad filters LW2 and LW3 (full lines), and for the narrow filters (dotted lines). However, note that, for the narrow filters, the data with magnitudes higher than $mag_{\rm lim}$ -0.5 are of poor quality (see text, Sect. 3.4 B). The logarithmic scales at the top of each panel show the corresponding flux densities in mJy for LW2 and LW3. A small correction has to be applied for the corresponding flux densities with narrow filters (see Table 1).
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.4cm,clip]{H3930F5.EPS} \end{figure}$ Figure 5: Top panel: distribution of the mean values of the separations between associated 7 $\mu$ m and 15 $\mu$ m sources after astrometric correction in all ISOGAL FC fields. Bottom panel: distribution of the standard deviations of these separations.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=7.1cm,clip]{H3930F6.EPS} \end{figure}$ Figure 6: Distribution of the values of the 7-15 $\mu$ m association quality flag for the different combinations of 7 and 15 $\mu$ m filters. The gray scale corresponds to the different values of this flag, from 4 (lightest gray) to 1 (darkest gray). Only very few sources have this flag equal to 1, so that the darkest gray is hardly visible in these plots.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.1cm,clip]{H3930F7.EPS} \end{figure}$ Figure 7: Distributions of the ISO-DENIS association flag for the different ISO filters. The gray scale corresponds to the different values of this flag, from 5 (lightest gray) to 1 (darkest gray), and the black sectors show the fraction of sources without DENIS association within the area observed by DENIS.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{H3930F1.EPS} \end{figure}$	Figure 1: Example of one ISOGAL observation which has been used for one FA and one FC fields. The formal limits of both fields are shown with rectangular frames: FC field (upper frame) and FA field (lower frame). The different symbols correspond to the different catalogues of sources (see Sect. 5): squares (FC, regular), crosses (FC, edge), diamonds (FA, regular) and plus signs (FA, edge).
Open with DEXTER

$\begin{figure} \par\includegraphics[angle=90,width=17.6cm,clip]{H3930F2.EPS} \end{figure}$	Figure 2: Galactic map of the ISOGAL disk fields. The black boxes show the fields which have been observed at both 7 and 15 $\mu$ m (FC fields), while the open boxes stand for 7 $\mu$ m only observations (FA), and the grey ones for 15 $\mu$ m only observations (FB).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{H3930F3.EPS} \end{figure}$	Figure 3: Distribution of the quality flag Q for the different filters. The gray scale corresponds to the different values of this flag, from 4 (lightest grey) to 1 (darkest grey).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.4cm,clip]{H3930F5.EPS} \end{figure}$	Figure 5: Top panel: distribution of the mean values of the separations between associated 7 $\mu$ m and 15 $\mu$ m sources after astrometric correction in all ISOGAL FC fields. Bottom panel: distribution of the standard deviations of these separations.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=7.1cm,clip]{H3930F6.EPS} \end{figure}$	Figure 6: Distribution of the values of the 7-15 $\mu$ m association quality flag for the different combinations of 7 and 15 $\mu$ m filters. The gray scale corresponds to the different values of this flag, from 4 (lightest gray) to 1 (darkest gray). Only very few sources have this flag equal to 1, so that the darkest gray is hardly visible in these plots.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.1cm,clip]{H3930F7.EPS} \end{figure}$	Figure 7: Distributions of the ISO-DENIS association flag for the different ISO filters. The gray scale corresponds to the different values of this flag, from 5 (lightest gray) to 1 (darkest gray), and the black sectors show the fraction of sources without DENIS association within the area observed by DENIS.
Open with DEXTER